Goodwill (Details) - USD ($)
$ in Thousands

3 Months Ended

12 Months Ended

Apr. 01, 2017

Mar. 31, 2018

Apr. 01, 2017

Apr. 02, 2016

Goodwill [Abstract]

Goodwill Disclosure Text Block

Company had approximately $2.6 million and $3.0 million of goodwill as of March 31, 2018 and April 1, 2017, respectively. The entire balance was associated with the 2017 acquisition of Visicon (See Note 26: Business Acquisitions for further discussion). Purchase accounting was not finalized for the Visicon acquisition as of April 1, 2017. During 2018, purchase accounting was completed and goodwill was adjusted down by $401 thousand. Changes in these balances are shown below:

(In thousands)	2018			2017
Goodwill, beginning	$	3,027		$	7,445
Purchase accounting adjustment - Visicon acquisition	(401		)	—
Recognized goodwill - Visicon acquisition (provisional)	—			3,027
Impaired goodwill - Topwin reporting unit	—			(7,445		)
Goodwill, ending	$	2,626		$	3,027

The Company tests goodwill for impairment annually or more frequently if an event occurs or circumstances would indicate that it is more likely than not the fair value of the reporting unit is less than the carrying value. The date of the annual test of goodwill is the first day of the fourth quarter. Accordingly, the Company performed a quantitative test for impairment of the recorded goodwill as of December 31, 2018 and January 1, 2017 for 2018 and 2017, respectively.

As a result of the 2017 test, the estimated fair value of the reporting unit associated with the Topwin acquisition was determined to be less than the carrying value of the reporting unit, indicating a full impairment and hence the Company recognized an impairment loss of $7.4 million. The 2017 loss from impairment of goodwill was recorded as a component of operating expenses in a separate line on the Consolidated Statements of Operations.

The fair value of the goodwill was determined using generally accepted valuation approaches. These approaches included a discounted cash flow model, a guideline transaction approach, and a guideline public company market multiples approach, each weighted according to the relevance of each approach. In supporting these valuations, management used assumptions based on the best information available.

The 2018 test did not indicate impairment. The primary assumption used in determining that the single reporting unit was not impaired, was the increase in the Company's stock price which provided significant headroom before an impairment would be indicated.

Goodwill [Line Items]

Goodwill

$ 3,027

$ 2,626

$ 3,027

$ 7,445

Goodwill, Purchase Accounting Adjustments

(401)

0

Goodwill, Acquired During Period

0

3,027

Goodwill, Impairment Loss

$ (7,400)

$ 0

$ (7,445)

$ 0